# PEPPOL-T16-B05901

Source: https://xmlvalid.com/rules/PEPPOL-T16-B05901

> Element 'cbc:RegistrationName' MUST be provided.

- Level: error
- Rule sets: Peppol Despatch Advice rules 3.5
- Context: `/ubl:DespatchAdvice/cac:DeliveryCustomerParty/cac:Party/cac:PartyLegalEntity`
- Test: `cbc:RegistrationName`

Validate a document against these rules: https://xmlvalid.com/validate